前言:

本篇博客仅仅作为笔录,避免每次网络搜索

前期准备:

  1. sql :
CREATE TABLE `tb_student` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) COLLATE utf8_bin NOT NULL,
  `age` int(11) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=26 DEFAULT CHARSET=utf8 COLLATE=utf8_bin ROW_FORMAT=DYNAMIC;

INSERT INTO `work`.`tb_student` (`id`, `name`, `age`) VALUES ('25', ' Ben ', '23');
INSERT INTO `work`.`tb_student` (`id`, `name`, `age`) VALUES ('26', 'Jack', '24');
INSERT INTO `work`.`tb_student` (`id`, `name`, `age`) VALUES ('27', 'Tom', '24');
INSERT INTO `work`.`tb_student` (`id`, `name`, `age`) VALUES ('28', 'Jerry', '19');
INSERT INTO `work`.`tb_student` (`id`, `name`, `age`) VALUES ('29', 'Lilian', '18');
  1. 实体类 StudentInfo:
public class StudentInfo {

    private Integer id;

    private String name;

    private Integer age;
    
    // 省略 get、set 方法
}

示例:

  1. 通过 两种不同数据类型的List 不同查询:

StudentDao :

/**
     * 通过年龄和名称查询结果
     * @param ages
     * @param name
     * @return
     */
    List<StudentInfo> getListByAgesAndName(@Param("ages") List<Integer> ages, @Param("name") String name);
    
  /**
     * 通过年龄【实体中获取】和名称查询结果
     * @param studentInfos
     * @param name
     * @return
     */
    List<StudentInfo> getListByStudentInfoAndName(@Param("studentInfos") List<StudentInfo> studentInfos, @Param("name") String name);

StudentMapper.xml

<!-- 通过年龄和名称查询结果 -->
    <select id="getListByAgesAndName"  resultType="com.morning.all.entity.StudentInfo">
        select * from  tb_student
        where name like CONCAT('%',#{name},'%')
        and age in
        <foreach collection="ages" item="age" index="index" open="(" close=")" separator=",">
            #{age}
        </foreach>
    </select>

    <!-- 通过年龄【实体中获取】和名称查询结果 -->
    <select id="getListByStudentInfoAndName"  resultType="com.morning.all.entity.StudentInfo">
        select * from  tb_student
        where name like CONCAT('%',#{name},'%')
        and age in
        <foreach collection="studentInfos" item="studentInfo" index="index" open="(" close=")" separator=",">
            #{studentInfo.age}
        </foreach>
    </select>

以上就是关于Mybatis List传参以及使用!


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原文链接:https://blog.csdn.net/zhangyong01245/article/details/100368144